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Q.31 Transpirational pull that extends down to the roots in plants can be interruptedby(A) Process of cavitation(B) Process of gravitation(C) Formation of water vapor pockets(D) Positive pressure in xylem sap […]

Q.30 In a nephron, _____ follows the ascending limb of the “loop of Henle”.(A) Descending limb(B) Distal tubule(C) Collecting tubule(D) Proximal tubule The correct answer is (B) Distal tubule. In […]

Q.29 A rise in cytosolic calcium ion concentration just after fertilization in a seaurchin egg leads to(A) Formation of fertilization envelope(B) Acrosomal reaction(C) Formation of vegetal pole(D) Formation of animal […]

Q.28 In bacteria, the σ factor that plays a major role in transcription during thestationary phase is(A) σ70(B) σ54(C) σ28(D) σ32 σ32 is the sigma factor that plays a major […]

Q. 27 In the electron transport chain, flavin mononucleotide (FMN) can adopt ______as the highest oxidation state and is capable of accepting or donating _____electrons, respectively.(A) 2; 2 or 3(B) […]

Q.26 The net equation for aerobic glycolysis is(A) Glucose+2ATP 2 lactate+2ADP+2Pi(B) Glucose+2ADP+2Pi+2NAD+ 2 pyruvate+2ATP+2NADH+2H2O+4H+(C) Glucose+2ADP+2Pi 2 pyruvate+2ATP+2H2O(D) Glucose+2ADP+2Pi+2NAD+ 2 lactate+2ATP+2NADH+2H2O+4H+ The correct net equation for aerobic glycolysis is: Glucose + […]

Q.25 For an enzyme following Michaelis–Menten kinetics, when [S]=KM then, thevelocity v is([S] is substrate concentration, KM is Michaelis constant, Vmax is maximalvelocity)(A) [S] × Vmax(B) 0.75 × Vmax(C) 0.5 […]

Q.24 In a honey bee population, the workers are infertile but protect the queen fromintruders and help in reproduction. This is an example of(A) K selection(B) Sexual selection(C) Kin selection(D) […]

Q.23 Components of a Transmission Electron Microscope are(A) Electron gun, objective lens, positron beam, projector lens(B) Neutron beam, projector lens, objective lens, evacuated tube(C) Electron beam, projector lens, objective lens, […]

Q.22 The stationary phase of cation–exchange chromatography can be(A) DEAE–cellulose(B) CM–cellulose(C) Sephadex G–50(D) Heparin–Sepharose Cation-Exchange Chromatography Stationary Phase: CSIR NET Solved Question The correct answer to the question “The stationary […]